Orthobunyaviruses Flashcards
1) All Bunyaviruses are transmitted by mosquitoes
false
2) Bunyaviruses cause oral infection
false
3) The virus causing severe fever and thrombocytopenia syndrome is transmitted by tick
true
4) Several bunyaviruses are zoonotic agents
true
5) Serological cross-reactions are frequent between related bunyaviruses
true
6) All bunyaviruses are vectored by insects
false
7) All bunyaviruses are vectored by ticks
false
8) Orthobunyaviruses are transmitted by haematophagous arthropods
true
9) Several virus species belong to Bunyaviridae family, many present only in tropical regions
true
10) Bunyaviruses are typically arboviruses
true
11) Bunyaviriuses has good antigens and good immune reaction.
true
1) The Aino virus causes foetal development problems and abortion in sheep
true
1) Akabane virus is zoonotic
false
2) Akabane virus causes foetal damages in dogs
false
3) Akabane disease virus causes foetal damages in sheep
true
4) Abortions and foetal malformations are the most typical signs of Akabane disease
true
5) The Akabane disease is mainly seen in geese
false
6) The Akabane disease can cause abortion in sheep
true
7) The main symptoms of the akabane disease are foetal development disorders
true
8) The main symptoms of akabane disease are the malformation of the fetus.
true
9) Akabane, Aino and Schmallenberg viruses cause similar disease in ruminants.
true
10) Akabane occurs in South-West Africa and is a disease of swine.
false
1) Schmallenberg virus causes disease only in Suffolk sheep breed
false
2) Schallenberg virus causes foetal damages in humans
false
3) Schmallenberg virus causes foetal development problems more frequently in cattle than in sheep
true
4) Schmallenberg virus is present worldwide
false
5) Schmallenberg virus causes foetal damages in pigs
false
6) Schmallenberg virus causes foetal damages in sheep
true
7) Schmallenberg virius associated disease as 1st observed in 2011 in certain Western European countries
true
8) The Schmallenberg virus causes severe disease in humans
false
9) The acute signs of Schmallenberg virus infection in cattle are fever and reduced milk production
true
10) Rodents are the reservoir hosts of Schmallenberg virus
true
11) In cattle Schmallenberg virus causes transient febrile disease with reduced milk production.
true
12) The Schmallenberg virus is a zoonotic agent.
false
13) Ticks are reservoirs and vectors of the Schmallenberg virus
false
14) Schmallenberg virus was transported to Europe from South-America
false
15) Schmallenberg virus emerged in Western Europe, in 2011, and spread rapidly in ruminants
true
16) In sheep the Schmallenberg virus mainly causes foetal malformations
true
17) Schmallenberg spread by midges vectors
true
18) No human case report on Schmallenberg virus
true
19) Pneumonia and abortion are the main signs of Schmallenberg virus infection in sheep
false
20) Midges are the main vectors of Schmallenberg virus.
true
1) Human is a competent host of Rift Valley fever virus i.e. the viraemic titre is high enough to infect the vector
true
2) The Rift valley fever virus damages the blood vessels thus causes haemorrhages
true
3) Wild rabbits are reservoirs of Rift valley fever virus
false
4) Rift valley fever is a human only disease
false
5) The rift valley fever virus causes foetal damages in sheep
false
6) Certain European mosquito species are competent vectors of Rift Valley fever virus
true
7) Rift Valley fever may cause high lethality in young ruminants
true
8) Rift Valley fever virus is a zoonotic agent
true
9) The Rift Valley fever virus can cause reproductive disorders in cattle and sheep
true
10) Necrotic hepatitis is a lesion of Rift Valley fever
true
11) Rift-valley fever caused human epidemics in Africa
true
12) Rift Valley fever virus caused severe human outbreaks in Africa and in the Arab peninsula.
true
13) The principle vectors of the rift valley disease are gnats
false
14) Rift valley fever outbreaks are most frequently seen in horses
false
15) Rift valley fever virus may cause 100% mortality in young susceptible animals
true
16) In enzootic regions vaccines are used for the prevention of rift valley fever
true
1) Nairobi sheep disease causes generalized infection in the animals
true
2) Vaccines are available in endemic regions to prevent Nairobi sheep disease
true
3) Nairobi sheep disease leads to abortion in the infected pregnant animals
true
4) Nairobi sheep disease causes haemorrhagic enteritis in the infected animals
true
5) Nairobi disease virus causes foetal damages in sheep
true
6) The Nairobi sheep disease can cause abortion in sheep
true
7) The most frequent sign of the Nairobi sheep disease is encephalitis
false
8) Haemorrhagic gastroenteritis is a lesion of Nairobi sheep disease
true
9) Nairobi sheep disease is zoonotic
true
10) Nairobi sheep disease can cause haemorrhagic enteritis among sheep
true
11) The most important symptom of the Nairobi sheep disease is nephritis.
false
12) Nairobi disease occurs mainly in sheep
true
13) The leading symptom of Nairobi disease is renal insufficiency
false
14) The Nairobi sheep disease is vectored by ticks
true
15) Nairobi sheep disease primarily causes pathological changes in the kidney (renal insufficiency).
false
1) Small rodents serve as reservoir hosts of Hantaviruses
true
2) Hantaviruses can cause renal failure in human
true
3) Hantaviruses may cause respiratory disease in humans
true
4) Hantaviruses causes haemorrhagic fever in humans
true
5) Hantaviruses cause hemorrhagic fevers in rodents
false
6) Hanta viruses can cause renal symptoms in humans
true
7) Mainly rodents are the natural reservoir of hanta viruses
true
8) Hanta viruses are naturally maintained by rodents
true
9) In domestic animals Hanta viruses typically cause liver dystrophy
false
10) Hanta virus infected people may develop severe renal failure
true
11) Rodents are reservoir for Hanta virus
true
12) Hanta virus cause renal disorders in humans
true
13) Hanta viruses cause encephalitis in horses
false
1) The Crimean-congo haemorrhagic fever is a human disease with headache, muscle pain and skin haemorrhages
true
2) Crimean-Congo Haemorrhagic fever virus is tick born
true
